Display panel and display device including the same

ABSTRACT

A display panel includes: a plurality of pixels in a display area; a plurality of data lines in the display area and extending along a first direction; a plurality of scan lines in the display area and extending along a second direction crossing the first direction; and a scan driver in a peripheral area adjacent to the display area and configured to provide a scan signal to the scan lines, wherein the peripheral area includes a corner area adjacent to a corner of the display area, and a notch area adjacent to the corner area and receding from a side of the peripheral area to form a notch, wherein a distance between the display area and an outer edge of the corner area is larger than a distance between the display area and an outer edge of the notch area.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to and benefits of Korean PatentApplication No. 10-2020-0107213 filed on Aug. 25, 2020 in the KoreanIntellectual Property Office, the entire content of which isincorporated herein by reference.

BACKGROUND 1. Field

Aspects of some embodiments of the present disclosure relate to adisplay panel.

2. Description of the Related Art

A display device generally includes a display panel configured todisplay images. Recently, various structures are being researched toimprove a design of a display device and to increase an effectivedisplay area.

The above information disclosed in this Background section is only forenhancement of understanding of the background and therefore theinformation discussed in this Background section does not necessarilyconstitute prior art.

SUMMARY

Aspects of some embodiments of the present disclosure relate to adisplay panel. For example, some embodiments relate a display panelincluding a notch portion and a display device including the displaypanel.

Aspects of some embodiments include a display panel with a reducednon-display area.

Aspects of some embodiments include a display device including thedisplay panel.

According to some embodiments, a display panel includes a plurality ofpixels in a display area, a plurality of data lines in the display areaand extending along a first direction, a plurality of scan lines in thedisplay area and extending along a second direction crossing the firstdirection, and a scan driver in a peripheral area adjacent to thedisplay area and providing a scan signal to the scan lines. Theperipheral area includes a corner area, which is adjacent to a corner ofthe display area, and a notch area, which is adjacent to the corner areaand recedes from a side of the peripheral area to form a notch. Adistance between the display area and an outer edge of the corner areais larger than a distance between the display area and an outer edge ofthe notch area.

According to some embodiments, a width of the notch along the firstdirection is about 50 μm to about 150 μm.

According to some embodiments, a width of the notch along the seconddirection is about 50 μm to about 500 μm.

According to some embodiments, the display panel includes a bendingportion, which extends from the peripheral area, and a rear portion,which extends from the bending portion and is under a front portionincluding the display area.

According to some embodiments, the peripheral area includes a connectionarea connected to the bending portion. The notch area is between thecorner area and the connection area.

According to some embodiments, the display area includes a corner with around shape or a chamfered shape.

According to some embodiments, the scan driver is arranged along acurving line or a diagonal line, which corresponds to the corner of thedisplay area, in the corner area of the peripheral area.

According to some embodiments, the display panel further includes a scandriving wiring passing through the notch area and electrically connectedto the scan driver, a first power transfer wiring passing through thenotch area and transferring a first power voltage to the pixels, aplurality of power lines in the display area and electrically connectedto the pixels and a second power transfer wiring in the peripheral areaand electrically connected to the power lines.

According to some embodiments, the second power transfer wiring passesthrough the notch area.

According to some embodiments, the display panel further includes a meshpower wiring, which is in the display area, extends along the seconddirection, and is electrically connected to the power lines. The secondpower transfer wiring is not in the notch area.

According to some embodiments, the display panel further includes aconnection wiring, which is in the display area and transfers a datasignal to a data line adjacent to the corner area.

According to some embodiments, the connection wiring is electricallyconnected to the second power transfer wiring.

According to some embodiments, a portion of the connection wiringextends along the second direction to cross a data line adjacentthereto.

According to some embodiments, at least one of the first power transferwiring or the second power transfer wiring have a dual-wiring structureincluding an upper wiring layer and a lower wiring layer.

According to some embodiments, the first power transfer wiring overlapsthe scan driving wiring in the notch area.

According to some embodiments, at least one of the first power transferwiring or the second power transfer wiring has a width along the firstdirection in the corner area, which is larger than a width along thefirst direction in the notch area.

According to some embodiments, a display device includes a display panelincluding a notch receding from a side of the display panel, a windowcover combined with a front surface of the display panel, a rear coveron a rear surface of the display panel, a first water-proof memberbetween the display panel and the rear cover, a second water-proofmember between the window cover and the rear cover, and a sealing memberfilling a gap between the first and second water-proof members andoverlapping the notch of the display panel.

According to some embodiments, a display panel includes a notch, whichoverlaps at least a portion of a sealing member filling a gap betweenwater-proof members. The sealing member may contact a window coverthrough the notch. Thus, position of the sealing member and a bendingportion may be moved or shifted toward to a display area, and a size ofa non-display area may be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

Aspects of one or more embodiments of the present inventive concept willbe more clearly understood from the following detailed description takenin conjunction with the accompanying drawings.

FIG. 1 is a rear view illustrating a display device according to someembodiments.

FIG. 2 is a cross-sectional view taken along the line I-I′ of FIG. 1according to some embodiments.

FIG. 3 is a plan view illustrating a display panel according to someembodiments.

FIG. 4 is a cross-sectional view illustrating a pixel unit of a displaypanel according to some embodiments.

FIG. 5 is a partial plan view illustrating a display panel according tosome embodiments.

FIG. 6 is an enlarged plan view illustrating a notch area of FIG. 5according to some embodiments.

FIG. 7 is a cross-sectional view taken along the line II-II′ of FIG. 6according to some embodiments.

FIG. 8 is an enlarged plan view partially illustrating a power transferwiring of a display panel according to some embodiments.

FIG. 9 is an enlarged cross-sectional view illustrating a notch area ofa display panel according to some embodiments.

FIG. 10 is a plan view partially illustrating a display panel accordingto some embodiments.

FIG. 11 is an enlarged plan view illustrating a notch area of FIG. 10according to some embodiments.

FIGS. 12 and 13 are plan views illustrating display panels according tosome embodiments.

DETAILED DESCRIPTION

A display panel and a display device according to some embodiments ofthe present inventive concept will be described in more detailhereinafter with reference to the accompanying drawings, in which someembodiments are shown.

FIG. 1 is a rear view illustrating a display device according to someembodiments. FIG. 2 is a cross-sectional view taken along line I-I′ ofFIG. 1. FIG. 3 is a plan view illustrating a display panel according tosome embodiments. A portion of the display panel may be bent to form abending portion. FIG. 3 may show a display panel that is unfoldedwithout a bending portion.

Referring to FIGS. 1 to 3, a display device 10 may include a displaypanel PN, a window cover WC combined with a front surface (uppersurface) of the display panel PN and a rear cover RC covering a rearsurface (lower surface) of the display panel PN. The rear cover RC maybe referred to as a housing.

The display panel PN may include a front portion combined with thewindow cover WC and a rear portion UPA extending from the front portionand arranged to face a rear surface of the front portion. For example,the display panel PN may further include a bending portion BA, whichconnects the front portion to the rear portion UPA.

The front portion includes a display area DA, in which a plurality ofpixels PX are arranged to display an image. The window cover WC mayinclude a light-transmitting area, which overlaps the display area DA.The display panel PN may be combined with the window cover WC by atransparent adhesive film.

According to some embodiments, the display panel PN may be an organiclight-emitting display panel. For example, each of the pixels PX mayinclude a light-emitting element and a driving element electricallyconnected to the light-emitting element. According to some embodiments,the light-emitting element may include an organic light-emitting diode,and the driving element may include at least one thin film transistor.

An area, which is adjacent to the display area DA and does not generatean image, may be referred to as a peripheral area PA. For example, theperipheral area PA may have a shape surrounding the display area DA.

According to some embodiments, the rear portion UPA of the display panelPN may be electrically connected to a driving device. For example, adriving chip DD may be mounted on the rear portion UPA. For example, thedriving chip DD may include a data driver providing a data signal to thedisplay panel PN.

A pad portion PD may be formed in the rear portion UPA. The pad portionPD may include a plurality of connection pads. The pad portion PD may beelectrically connected to a control device CN. For example, the controldevice CN may provide a control signal to the driving chip DD.Furthermore, the control device CN may provide a power voltage, a scandriving signal or the like to the display panel PN. For example, thecontrol device CN may include a printed circuit board. The rear portionUPA may include transfer wirings, which transfer a control signal to thedriving chip DD from the pad portion PD, transfer a driving signalgenerated by the driving chip DD to the display area DA, and transfer apower voltage, a scan driving signal or the like to the display area DA.

The display device 10 may further include a water-proof member. Forexample, the water-proof member may be arranged along an edge of thedisplay device 10. For example, the water-proof member may be adouble-sided adhesive tape for both of sealing and adhesion

According to some embodiments, the display device 10 may include a firstwater-proof member PT1 and a second water-proof member PT2. The firstwater-proof member PT1 may extend at least along a first direction D1,and may be located between the display panel PN and the rear cover RC.The second water-proof member PT2 may extend along a second direction D2crossing the first direction D1, and may be located between the windowcover WC and the rear cover RC.

For example, the second water-proof member PT2 may extend along a sideof the display panel PN, which is adjacent to the bending portion BA.The first water-proof member PT1 may extend along other three sides ofthe display panel PN. However, embodiments are not limited thereto. Forexample, the display panel PN may include at least three water-proofmembers.

The rear cover RC may have a stepped structure to receive the windowcover WC and the second water-proof member PT2.

The first water-proof member PT1 and the second water-proof member PT2may be arranged at different heights to be spaced apart from each other.Thus, a sealing member GK may be provided between the first water-proofmember PT1 and the second water-proof member PT2 to compensate for a gapbetween the first water-proof member PT1 and the second water-proofmember PT2 for water-proofing. The sealing member GK may fill the gapbetween the first water-proof member PT1 and the second water-proofmember PT2. For example, the sealing member GK may be formed from acurable resin with a high viscosity. For example, the curable resin mayinclude a thermo-curable resin or a photo-curable resin, and may includea silicone resin, an epoxy resin, an elastomer or a combination thereof.

The sealing member GK may contact the window cover WC and the rear coverRC to increase sealing reliability. Thus, a space may be required forforming a contact area CT of the sealing member GK and the window coverWC. According to some embodiments, the display panel PN may include anotch NC overlapping the sealing member GK (e.g., in a plan view or aview perpendicular or normal with respect to a display surface of thedisplay panel PN). For example, the front portion of the display panelPN may have a substantially rectangular shape, of which corners may beround or chamfered, in a plan view. The notch NC may be defined by anarea, which recedes from a side of the front portion. For example, thesealing member GK may overlap the notch NC and an area adjacent to thenotch NC.

According to some embodiments, a display panel includes a notch, whichoverlaps at least a portion of a sealing member filling a gap betweenwater-proof members. The sealing member may contact a window coverthrough the notch. Thus, position of the sealing member and a bendingportion may be moved or shifted toward to a display area, and a size ofa non-display area may be reduced, while maintaining water-proof orwater resistant characteristics of the display device 10.

FIG. 4 is a cross-sectional view illustrating a pixel unit of thedisplay panel PN according to some embodiments.

Referring to FIG. 4, a buffer layer 112 may be located on a basesubstrate 110. An active pattern AP may be located on the buffer layer112.

According to some embodiments, the base substrate 110 may include apolymeric material. For example, the base substrate 110 may includepolyethylene terephthalate, polyethylene naphthalate, polyether ketone,polycarbonate, polyarylate, polyether sulfone, polyimide,polybenzoxazole, polybenzobisoxazole, polybenzoimidazole,polybenzothiazole or a combination thereof. According to someembodiments, the base substrate 110 may have a stacked structureincluding a polymeric film including polyimide and a barrier layerincluding an inorganic material.

According to some embodiments, a supporting film SF may be located underthe base substrate 110. The supporting film SF may be a polymeric filmto support the base substrate 110. The supporting film SF may not belocated in the bending portion BA or may include an opening overlappingthe bending portion BA.

The buffer layer 112 may prevent or reduce permeation of impurities,humidity or external gas from underneath of the base substrate 110, andmay reduce a roughness of an upper surface of the base substrate 110.For example, the buffer layer 112 may include an inorganic material suchas silicon oxide, silicon nitride, silicon oxynitride or the like.

The active pattern AP may include a channel region C1, a source regionS1 and a drain region D1. The source region S1 and the drain region D1may function as a source electrode and a drain electrode, respectively.

A first gate metal pattern may be located on the active pattern AP. Forexample, the first gate metal pattern may include a gate electrode GEoverlapping the channel region C1 of the active pattern AP. A firstinsulation layer 120 may be located between the active pattern AP andthe first gate metal pattern.

A second gate metal pattern including a capacitor electrode pattern CPmay be located on the first gate metal pattern. For example, thecapacitor electrode pattern CP may overlap the gate electrode GE.

A second insulation layer 130 may be located between the first gatemetal pattern and the second gate metal pattern. A third insulationlayer 140 may be located on the second gate metal pattern.

For example, the active pattern AP may include silicon or a metal oxidesemiconductor. According to some embodiments, the active pattern AP mayinclude polycrystalline silicon (polysilicon), which may be doped withn-type impurities or p-type impurities.

According to some embodiments, an active pattern may include a metaloxide semiconductor. For example, the active pattern may include abinary compound (AB_(X)), a ternary compound (AB_(x)C_(y)) or aquaternary compound (AB_(x)C_(y)D_(z)), which contains indium (In), zinc(Zn), gallium (Ga), tin (Sn), titanium (Ti), aluminum (Al), hafnium(Hf), zirconium (Zr), magnesium (Mg). For example, the active patternmay include zinc oxide (ZnO_(x)), gallium oxide (GaO_(x)), titaniumoxide (TiO_(x)), tin oxide (SnO_(x)), indium oxide (InO_(x)),indium-gallium oxide (IGO), indium-zinc oxide (IZO), indium tin oxide(ITO), gallium zinc oxide (GZO), zinc magnesium oxide (ZMO), zinc tinoxide (ZTO), zinc zirconium oxide (ZnZr_(x)O_(y)), indium-gallium-zincoxide (IGZO), indium-zinc-tin oxide (IZTO), indium-gallium-hafnium oxide(IGHO), tin-aluminum-zinc oxide (TAZO), indium-gallium-tin oxide (IGTO)or the like.

For example, the first insulation layer 120, the second insulation layer130 and the third insulation layer 140 may each include silicon oxide,silicon nitride, silicon oxynitride or a combination thereof.Furthermore, the first insulation layer 120, the second insulation layer130 and the third insulation layer 140 may each include an insulatingmetal oxide such as aluminum oxide, tantalum oxide, hafnium oxide,zirconium oxide, titanium oxide or the like. For example, the firstinsulation layer 120, the second insulation layer 130 and the thirdinsulation layer 140 may each have a single-layered structure or amulti-layered structure including silicon nitride and/or silicon oxide.

For example, the first gate metal pattern and the second gate metalpattern may each include a metal, a metal alloy, a metal nitride, aconductive metal oxide or the like. For example, the first gate metalpattern and the second gate metal pattern may each include gold (Au),silver (Ag), aluminum (Al), copper (Cu), nickel (Ni), platinum (Pt),magnesium (Mg), chromium (Cr), tungsten (W), molybdenum (Mo), titanium(Ti), tantalum (Ta) or an alloy thereof, and may have a single-layeredstructure or a multi-layered structure including different metal layers.

A first source metal pattern may be located on the third insulationlayer 140. The first source metal pattern may include a source patternSP and a drain pattern DP, which electrically contact the active patternAP. The source pattern SP and the drain pattern DP may pass through theinsulation layers thereunder to contact the source region S1 and thedrain region D1 of the active pattern AP, respectively. According tosome embodiments, the first source metal pattern may further include atleast one of a connection pattern transferring a driving signal or amesh power line.

A fourth insulation layer 150 may be located on the first source metalpattern. The fourth insulation layer 150 may compensate for a heightdifference of a structure located thereunder to planarize the substrate.The fourth insulation layer 150 may include an organic material. Forexample, the fourth insulation layer 150 may include an organicinsulation material such as a phenol resin, an acryl resin, a polyimideresin, a polyamide resin, a siloxane resin, an epoxy resin or the like.The fourth insulation layer 150 may be referred as to a first viainsulation layer or a first organic insulation layer.

A second source metal pattern may be located on the fourth insulationlayer 150. The second source metal pattern may include a connectionelectrode CE, which passes through the fourth insulation layer 150 toelectrically contact the drain pattern DP. For example, the secondsource metal pattern may further include at least one of a data linetransferring a data signal or a power line transferring the powervoltage

For example, the first source metal pattern and the second source metalpattern may each include a metal, a metal alloy, a metal nitride, aconductive metal oxide or the like. For example, the first source metalpattern and the second source metal pattern may each include Au, Ag, Al,Cu, Ni, Pt, Mg, Cr, W, Mo, Ti, Ta or an alloy thereof, and may have asingle-layered structure or a multi-layered structure includingdifferent metal layers. According to some embodiments, the first sourcemetal pattern and the second source metal patterns may each have amulti-layered structure including aluminum.

A fifth insulation layer 160 may be located on the second source metalpattern. The fifth insulation layer 160 may include a same material asthe fourth insulation layer 150. The fifth insulation layer 160 may bereferred as to a second via insulation layer or a second organicinsulation layer.

A light-emitting element 200 may be located on the fifth insulationlayer 160. The light-emitting element 200 may include a first electrodeEL1, an organic layer OL located on the first electrode EL1 and a secondelectrode EL2 located on the organic layer OL. The first electrode EL1of the light-emitting element 200 may be electrically connected to theconnection electrode CE.

A pixel-defining layer PDL may be located on the fifth insulation layer160. The pixel-defining layer PDL may include an opening overlapping atleast a portion of the first electrode EL1. At least a portion of theorganic layer OL may be located in the opening. The organic layer OL mayinclude a common layer extending continuously over a plurality of pixel.According to some embodiments, the organic layer OL may be formed as anisolated pattern located in each of the pixels. The pixel-defining layerPDL may include an organic material.

The first electrode EL1 may function as an anode. The first electrode EUmay be referred to as a pixel electrode or a lower electrode. Forexample, the first electrode EL1 may be formed as a transmittingelectrode or a reflecting electrode according to an emission type of thedisplay device. When the first electrode EL1 is a transmittingelectrode, the first electrode EL1 may include indium tin oxide, indiumzinc oxide, zinc tin oxide, indium oxide, zinc oxide, tin oxide or thelike. When the first electrode EL1 is a reflecting electrode, the firstelectrode EU may include Au, Ag, Al, Cu, Ni, Pt, Mg, Cr, W, Mo, Ti or acombination thereof, and may have a stacked structure further includingthe material that may be used for the transmitting electrode.

The organic layer OL may at least an emission layer, and may furtherinclude at least one of a hole-injection layer (HIL), ahole-transporting layer (HTL), an electron-transporting layer (ETL), oran electron-injection layer (EIL) to have a stacked structure. Theorganic layer OL may include a low molecular weight organic compound, ahigh molecular weight organic compound or a combination thereof.

According to some embodiments, the organic layer OL may emit a redlight, a green light or a blue light. According to some embodiments, theorganic layer OL may emit a white light. The organic layer OL emitting awhite light may have a multi-layered structure including a redlight-emitting layer, a green light-emitting layer and a bluelight-emitting layer, or a single-layered structure including a mixtureof a red-emitting material, a green-emitting material and ablue-emitting material.

The second electrode EL2 may function as a cathode. The second electrodeEL1 may be referred to as a common electrode or an upper electrode. Thesecond electrode EL2 may be formed as a transmitting electrode or areflecting electrode according to an emission type of the displaydevice. For example, the second electrode EL2 may include a metal, ametal alloy, a metal nitride, a metal fluoride, a conductive metal oxideor a combination thereof.

For example, the second electrode EL2 may be formed as a common layerextending continuously over a plurality of pixels.

An encapsulation layer 210 may be located on the light-emitting element200. The encapsulation layer 210 may have a stacked structure of aninorganic thin film and an organic thin film. For example, theencapsulation layer 210 may include a first inorganic thin film 212, anorganic thin film 214 located on the first inorganic thin film 212 and asecond inorganic thin film 216 located on the organic thin film 214.

For example, the organic thin film may include a cured polymer resinsuch as a cured acryl resin, a cured epoxy resin or the like. Forexample, the cured polymer resin may be formed by cross-linking reactionof monomers. For example, the inorganic thin films may include siliconoxide, silicon nitride, silicon oxynitride, aluminum oxide, tantalumoxide, hafnium oxide, zirconium oxide, titanium oxide or a combinationthereof.

FIG. 5 is a partial plan view illustrating a display panel according tosome embodiments. FIG. 6 is an enlarged plan view illustrating a notcharea of FIG. 5. FIG. 7 is a cross-sectional view taken along the lineII-II′ of FIG. 6.

Referring to FIG. 5, a display panel may include a front portion FA, abending portion BA connected to the front portion and a rear portion UPAextending from the bending portion BA. The front portion FA may includea display area DA and a peripheral area. In FIG. 5, the display area DAmay be distinguished from the peripheral area by a display area boundaryDAB. According to some embodiments, the display area DA may be an areaat which images are displayed and may be defined by a display surfaceentirely having a two-dimensional shape. Embodiments according to thepresent disclosure, however, are not necessarily limited thereto, andaccording to some embodiments the display surface may include a primarydisplay surface and one or more secondary display surfaces or curvaturesthat extend or curve from the primary display surface. According to someembodiments, the display area DA may have a rectangular shape, and insome embodiments, the display area DA may include one or more cornerareas that are round or chamfered. The peripheral area may surround thedisplay area DA and may be an area at which images are not displayed.For example, the peripheral area may have a rectangular frame shape, ofwhich corners area round or chamfered, to correspond to, or follow acontour of, a shape of the display area DA.

Data lines extending along a first direction D1 and scan lines extendingalong a second direction D2 crossing the first direction D1 may belocated in the display area DA. Furthermore, power lines extending alongthe first direction D1 may be located in the display area DA.

A scan driver GD, a scan driving wiring CK, a first power transferwiring PB1, a second power transfer wiring PB2 and a fan-out wiring maybe located in the peripheral area.

The scan driver GD may provide scan signals to the scan lines. Forexample, the scan driver GD may include a plurality of driving circuits,which each provides a scan signal to each scan lines.

The scan driving wiring CK may transfer a scan driving signal to thescan driver GD. According to some embodiments, the scan driving signalmay include a clock signal. The scan driving wiring CK may include aplurality of signal lines.

The first power transfer wiring PB1 may transfer a first power voltageto the second electrode EL2 of the light-emitting element 200. The firstpower transfer wiring PB1 may have a shape surrounding at least aportion of the display area DA. For example, when the display area DAincludes a round corner, the first power transfer wiring PB1 may includea curving portion extending along the round corner of the display areaDA.

The second power transfer wiring PB2 may transfer a second power voltageto the power lines. The second power voltage may be transferred to adriving element of each pixels through the power lines. The drivingelement may generate a driving voltage based on the second powervoltage. The driving voltage may be transferred to the first electrodeEU of the light-emitting element. The second power transfer wiring PB2may extend along a side of the display area DA. For example, when thedisplay area DA includes a round corner, the second power transferwiring PB2 may include a curving portion extending along the roundcorner of the display area DA.

The fan-out wiring may include a plurality of fan-out lines transferringdata signals to the data lines. According to some embodiments, a portionof the fan-out lines may be electrically connected to a connectionwirings BR so that a portion of the data lines may receive data signalthrough the connection wirings BR. At least a portion of the connectionwiring BR is located in the display area DA, and extends along thesecond direction D2 to cross at least one of the data lines.

For example, referring to FIGS. 5 and 6, a first fan-out line FL1 may beelectrically connected to a first data line DL1. A second fan-out lineFL2 may be electrically connected to the connection wiring BR. Theconnection wiring BR may include a first vertical-extending portion anda first horizontal-extending portion. The first vertical-extendingportion may extend along the first direction D1 in the display area DA.The first horizontal-extending portion may extend along the seconddirection D2 from an end of the first vertical-extending portion. Thefirst horizontal-extending portion may cross the first data line DL1.The connection wiring BR may further include a second vertical-extendingportion and a second horizontal-extending portion. The secondvertical-extending portion may extend along the first direction D1 froman end of the first horizontal-extending portion toward the peripheralarea. The second horizontal-extending portion may be located in theperipheral area, and may electrically contact a second data line DL2 andan end of the second vertical-extending portion.

According to some embodiments, the vertical-extending portions of theconnection wiring BR and the data lines may be formed from a same layeras the second source metal pattern. Thus, the vertical-extendingportions of the connection wiring BR and the data lines may be locatedin a same layer as the connection electrode CE. Furthermore, thehorizontal-extending portions of the connection wiring BR may be formedfrom a same layer as the first source metal pattern. Thus, thehorizontal-extending portions of the connection wiring BR may be locatedin a same layer as the source pattern SP and the drain pattern DP.

A transfer wiring TL may be located on the bending portion BA and therear portion UPA to transfer the scan driving signal, the power voltageand the data signal to the scan driving wiring CK, the first powertransfer wiring PB1, the second power transfer wiring PB2 and thefan-out wiring.

According to some embodiments, the peripheral area PA includes a cornerarea CNA, a connection area CA and a notch area NA. The corner area CNAmay be adjacent to a corner of the display area DA. A portion of thescan driver GD may be located in the corner area CNA. The scan driver GDmay be arranged along a curving line or a diagonal line, whichcorresponds to a corner of the display area DA in the corner area CNA.

The connection area CA may be defined by an area connected to thebending portion BA or by an area between the display area DA and thebending portion BA.

The notch area NA may be defined by an area adjacent to a notch NC ofthe display panel to have a smaller width than areas adjacent thereto.According to some embodiments, the notch area NA may be adjacent to thecorner area CNA. For example, the notch area NA may be located betweenthe corner area CNA and the connection area CA. A width of the notcharea NA along the first direction D1 may be smaller than widths of thecorner area CNA and the connection area CA along the first direction D1.Thus, a distance between the display area DA an outer edge of the notcharea NA along the first direction D1 may be smaller than a distancebetween the display area DA an outer edge of the corner area CNA alongthe first direction D1. For example, the outer edge of the notch area NAmay recede from the outer edge of the corner area CNA toward the displayarea DA. For example, a length (width) d1 of the notch may be about 50μm to about 150 μm. When the length d1 of the notch is excessivelysmall, adhesion between a sealing member and a window cover may bereduced. When the length d1 of the notch is excessively large, it may bedifficult to obtain a space for wirings. A width w1 of the notch area NAor the notch NC along the second direction D2 may be about 50 μm toabout 500 μm. However, embodiments are not limited thereto, and a sizeand a design of the notch may be variously changed as desired.

According to some embodiments, the display area DA may have arectangular shape, of which corners are round or chamfered. Thus, acolumn adjacent to the corners may have smaller pixels than pixelsarranged in a column far from the corners, and a row adjacent to thecorners may have smaller pixels than pixels arranged in a row far fromthe corners. Thus, a second data line DL2 adjacent to the corner areaCNA of the peripheral area may have a smaller length than a length of afirst data line DL1 far from the corner area CNA. Furthermore, a secondgate line GL2 adjacent to the corner area CNA may have a smaller lengththan a length of a first gate line GL1 far from the corner area CNA.Furthermore, a second power line PL2 adjacent to the corner area CNA mayhave a smaller length than a length of a first power line PL1 far fromthe corner area CNA. The first data line DL1 may be directly connectedto the first fan-out line FL1. The second data line DL2 may beelectrically connected to the second fan-out line FL2 through theconnection wiring BR.

However, embodiments according to the present disclosure are not limitedthereto. For example, the first data line DL1 and the second data lineDL2 may have a substantially same length. The first gate line GL1 andthe second gate line GL2 may have a substantially same length. The firstpower line PL1 and the second power line PL2 may have a substantiallysame length.

A dam structure DM may be located in the peripheral area. The damstructure DM may have a shape surrounding the display area DA in a planview. The scan driver GD, the scan driving wiring CK, the first powertransfer wiring PB1, the second power transfer wiring PB2 and at least aportion of the fan-out wiring may be located between the dam structureDM and the display area DA.

According to some embodiments, the dam structure DM may extend along anedge of the peripheral area. Because the display panel includes thenotch NC, the dam structure DM may recede inwardly in the notch area NA,or may protrude outwardly in the corner area CNA.

Referring to FIGS. 6 and 7, a buffer layer 112, a first insulation layer120, a second insulation layer 130, a third insulation layer 140, afourth insulation layer 150, a fifth insulation layer 160 and anencapsulation layer 210 may be located on the base substrate 110 in anotch area NA. The buffer layer 112, the first insulation layer 120, thesecond insulation layer 130, the third insulation layer 140, the fourthinsulation layer 150, the fifth insulation layer 160 and theencapsulation layer 210 may extend from the display area DA.

A scan driving wiring CK, a first power transfer wiring PB1, a secondpower transfer wiring PB2, a fan-out siring and a dam structure DM maybe located in the notch area NA.

For example, the scan driving wiring CK may include a first scan drivingline CK1 and a second scan driving line CK2. The first scan driving lineCK1 and the second scan driving line CK2 may be spaced apart from eachother along a first direction D1 and may extend along a second directionD2 crossing the first direction D1.

The first scan driving line CK1 and the second scan driving line CK2 maybe arranged in different layers. For example, the first scan drivingline CK1 may be formed from a same layer as the first gate metalpattern. Thus, the first scan driving line CK1 may be located betweenthe first insulation layer 120 and the second insulation layer 130. Thesecond scan driving line CK2 may be formed from a same layer as thesecond gate metal pattern. Thus, the second scan driving line CK2 may belocated between the third insulation layer 140 and the second insulationlayer 130.

According to some embodiments, at least one of the first power transferwiring PB1 or the second power transfer wiring PB2 may have adual-wiring structure.

For example, the first power transfer wiring PB1 may include a lowerwiring layer PB1 a and an upper wiring layer PB1 b located on the lowerwiring layer PB1 a. In an area, the lower wiring layer PB1 a and theupper wiring layer PB1 b may be spaced apart from each other by thefourth insulation layer 150. In another area, the lower wiring layer PB1a and the upper wiring layer PB1 b may electrically contact each other.According to some embodiments, the lower wiring layer PB1 a may beformed from a same layer as the first source metal pattern. Thus, thelower wiring layer PB1 a may be located between the third insulationlayer 140 and the fourth insulation layer 150. The upper wiring layerPB1 b may be formed from a same layer as the second source metalpattern. Thus, upper wiring layer PB1 b may be located between thefourth insulation layer 150 and the fifth insulation layer 160.

For example, the second power transfer wiring PB2 may include a lowerwiring layer PB2 a and an upper wiring layer PB2 b located on the lowerwiring layer PB2 a. In an area, the lower wiring layer PB2 a and theupper wiring layer PB2 b may be spaced apart from each other by thefourth insulation layer 150. In another area, the lower wiring layer PB2a and the upper wiring layer PB2 b may electrically contact each other.According to some embodiments, the lower wiring layer PB2 a may beformed from a same layer as the first source metal pattern. Thus, thelower wiring layer PB2 a may be located between the third insulationlayer 140 and the fourth insulation layer 150. The upper wiring layerPB2 b may be formed from a same layer as the second source metalpattern. Thus, upper wiring layer PB2 b may be located between thefourth insulation layer 150 and the fifth insulation layer 160.

For example, a first power line PL1 may be continuously connected to theupper wiring layer PB2 b of the second power transfer wiring PB2.

The fan-out wiring may include a plurality of fan-out lines. Forexample, the fan-out wiring may include a first fan-out line FL1electrically contacting a first data line DL1 and a second fan-out lineFL2 electrically contacting a connection wiring BR.

The first fan-out line FL1 and the second fan-out line FL2 may bearranged in different layers. For example, the first fan-out line FL1may be formed from a same layer as the first gate metal pattern. Thus,the first fan-out line FL1 may be located between the first insulationlayer 120 and the second insulation layer 130. The second fan-out lineFL1 may be formed from a same layer as the second gate metal pattern.Thus, the second fan-out line FL1 may be located between the thirdinsulation layer 140 and the second insulation layer 130.

According to some embodiments, at least a portion of the fan-out wiringmay overlap at least one of the power transfer wirings PB1 or PB2.

The peripheral area may include an organic-layer-disconnected area ORA.In the organic-layer-disconnected area ORA, an organic layer except forthe dam structure may be removed. For example, the fourth insulationlayer 150 and the fifth insulation layer 160 may be excluded in theorganic-layer-disconnected area ORA.

The organic-layer-disconnected area ORA may have a shape surrounding thedisplay area DA in a plan view. Thus, instances of moisture or othercontaminants entering the display area DA along an organic layer may beprevented or reduced.

The dam structure DM may be arranged along theorganic-layer-disconnected area ORA. The dam structure DM may prevent orreduce instances of a liquid monomer composition overflowing when anorganic thin film 214 of the encapsulation layer 210 is formed. Forexample, a location of an outer edge of the organic thin film 214 may becontrolled by the dam structure DM. Inorganic thin films 212 and 216 ofthe encapsulation layer 210 may extend outwardly over the dam structureDM.

The dam structure DM may include an organic insulation material. Forexample, the dam structure DM may be formed from a same layer as thefourth insulation layer 150, the fifth insulation layer 160 or acombination thereof.

FIG. 8 is an enlarged plan view partially illustrating a power transferwiring of a display panel according to some embodiments.

Referring to FIG. 8, a first power transfer wiring PB1 and a secondpower transfer wiring PB2 may extend continuously in a corner area CNAand a notch area NA.

At least one of the first power transfer wiring PB1 or the second powertransfer wiring PB2 may have a width variance. For example, the firstpower transfer wiring PB1 may have a width W2′ in the corner area CNA,which is larger than a width W2 in the notch area NA. The second powertransfer wiring PB2 may have a width W3′ in the corner area CNA, whichis larger than a width W3 in the notch area NA.

According to some embodiments, a width of a power transfer wiring may beselectively reduced in a notch area having a smaller width to minimize,prevent, or reduce increases of resistance.

FIG. 9 is an enlarged cross-sectional view illustrating a notch area ofa display panel according to some embodiments.

Referring to FIG. 9, a first power transfer wiring PB1 may overlap ascan driving wiring CK in a notch area NA. Thus, a width of the notcharea NA may be further reduced.

FIG. 10 is a plan view partially illustrating a display panel accordingto some embodiments. FIG. 11 is an enlarged plan view illustrating anotch area of FIG. 10.

Referring to FIGS. 10 and 11, a second power transfer wiring PB2electrically connected to a power line located in a display area DA maynot be located in a notch area NA.

For example, a second power transfer wiring PB2 may be locatedselectively in a connection area CA of a peripheral area, which isconnected to a bending portion BA. The second power transfer wiring PB2may electrically contact a third power line PL3 adjacent to theconnection area CA and extending along a first direction D1. A meshpower wiring MP may be located in a display area DA. The mesh powerwiring MP electrically contacts the third power line PL3 and extendsalong a second direction D2 crossing the first direction D1. The meshpower wiring MP may electrically contact a first power line PL1 adjacentto the notch area NA and a second power line PL2 adjacent to a cornerarea CNA. Thus, a power voltage may be applied to the first power linePL1 and the second power line PL2 through the mesh power wiring MP.

For example, the power lines PL1, PL2 and PL3 may be formed from a samelayer as a second source metal pattern, and the mesh power wiring MP maybe formed from a same layer as a first source metal pattern.

Because the second power transfer wiring PB2 is not located in the notcharea NA, a first power transfer wiring PB1 and a scan driving wiring CKmay be moved or recede toward the display area DA. Thus, a width of thenotch area NA along the first direction D1.

FIGS. 12 and 13 are plan views illustrating display panels according toembodiments.

Referring to FIG. 12, a display area DA of a display panel PN may have acorner with a chamfered shape. A scan driver may be arranged along thecorner of the display area DA in a corner area of a peripheral area PA.An edge of the corner area may have a round shape or a chamfered shape.

Referring to FIG. 13, a notch may be formed at a side of a display panelPN, which is opposite to a bending portion BA. For example, the displaypanel PN may include a first notch NC1 formed at a first side adjacentto the bending portion BA and a second notch NC2 formed at a second sideopposite to the first side.

According to some embodiments, a display device may include a windowcover WC covering a front surface of the display panel PN and a rearcover covering a rear surface of the display panel PN. Water-proofmembers may be located between the window cover WC and the rear cover,and a sealing member may be provided to fill a gap between thewater-proof members. The sealing member may overlap the first and secondnotches NC1 and NC2 of the display panel PN.

For example, a first sealing member GK1 may overlap the first notch NC1to contact the window cover WC through the first notch NC1. A secondsealing member GK2 may overlap the second notch NC2 to contact thewindow cover WC through the second notch NC2.

Embodiments are not limited to the above-explained organiclight-emitting display devices. For example, embodiments may includevarious display devices such as a liquid crystal display device, aninorganic electro-luminescent display device, a micro-LED display deviceor the like.

Embodiments may be applied to various display devices. For example,aspects of some embodiments may be applied to vehicle-display device, aship-display device, an aircraft-display device, portable communicationdevices, display devices for display or for information transfer, amedical-display device, etc.

The foregoing is illustrative of embodiments and is not to be construedas limiting thereof. Although embodiments have been described, thoseskilled in the art will readily appreciate that many modifications arepossible in the embodiments without materially departing from the novelteachings and aspects of the present inventive concept. Accordingly, allsuch modifications are intended to be included within the scope ofembodiments according to the present inventive concept. Therefore, it isto be understood that the foregoing is illustrative of variousembodiments and is not to be construed as limited to the specificembodiments disclosed, and that modifications to the disclosedembodiments, as well as other embodiments, are intended to be includedwithin the scope of the present inventive concept, as set forth in thefollowing claims and equivalents thereof.

What is claimed is:
 1. A display panel comprising: a plurality of pixelsin a display area; a plurality of data lines in the display area andextending along a first direction; a plurality of scan lines in thedisplay area and extending along a second direction crossing the firstdirection; and a scan driver in a peripheral area adjacent to thedisplay area and configured to provide a scan signal to the scan lines,wherein the peripheral area includes a corner area adjacent to a cornerof the display area, and a notch area adjacent to the corner area andreceding from a side of the peripheral area to form a notch, wherein adistance between the display area and an outer edge of the corner areais larger than a distance between the display area and an outer edge ofthe notch area.
 2. The display panel of claim 1, wherein a width of thenotch along the first direction is 50 μm to 150 μm.
 3. The display panelof claim 2, wherein a width of the notch along the second direction is50 μm to 500 μm.
 4. The display panel of claim 1, wherein the displaypanel includes a bending portion extending from the peripheral area, anda rear portion extending from the bending portion and under a frontportion including the display area.
 5. The display panel of claim 4,wherein the peripheral area includes a connection area connected to thebending portion, wherein the notch area is between the corner area andthe connection area.
 6. The display panel of claim 1, wherein thedisplay area includes a corner with a round shape or a chamfered shape.7. The display panel of claim 6, wherein the scan driver is arrangedalong a curving line or a diagonal line, which corresponds to the cornerof the display area, in the corner area of the peripheral area.
 8. Thedisplay panel of claim 1, further comprising: a scan driving wiringpassing through the notch area and electrically connected to the scandriver; a first power transfer wiring passing through the notch area andtransferring a first power voltage to the pixels; a plurality of powerlines in the display area and electrically connected to the pixels; anda second power transfer wiring in the peripheral area and electricallyconnected to the power lines.
 9. The display panel of claim 8, whereinthe second power transfer wiring passes through the notch area.
 10. Thedisplay panel of claim 8, further comprising a mesh power wiring in thedisplay area and extending along the second direction, wherein the meshpower wiring is electrically connected to the power lines, wherein thesecond power transfer wiring is not in the notch area.
 11. The displaypanel of claim 8, further comprising a connection wiring in the displayarea and configured to transfer a data signal to a data line adjacent tothe corner area.
 12. The display panel of claim 11, wherein theconnection wiring is electrically connected to the second power transferwiring.
 13. The display panel of claim 12, wherein a portion of theconnection wiring extends along the second direction to cross a dataline adjacent thereto.
 14. The display panel of claim 8, wherein atleast one of the first power transfer wiring or the second powertransfer wiring have a dual-wiring structure including an upper wiringlayer and a lower wiring layer.
 15. The display panel of claim 8,wherein the first power transfer wiring overlaps the scan driving wiringin the notch area.
 16. The display panel of claim 8, wherein at leastone of the first power transfer wiring or the second power transferwiring has a width along the first direction in the corner area, whichis larger than a width along the first direction in the notch area. 17.A display device comprising: a display panel including a notch recedingfrom a side of the display panel; a window cover combined with a frontsurface of the display panel; a rear cover on a rear surface of thedisplay panel; a first water-proof member between the display panel andthe rear cover; a second water-proof member between the window cover andthe rear cover; and a sealing member filling a gap between the first andsecond water-proof members and overlapping the notch of the displaypanel.
 18. The display device of claim 17, wherein the sealing memberincludes a cured resin.
 19. The display device of claim 17, wherein atleast one of the first or second water-proof members include adouble-sided adhesive tape.
 20. The display device of claim 17, whereinthe display panel includes: a plurality of pixels in a display area; aplurality of data lines in the display area and extending along a firstdirection; a plurality of scan lines in the display area and extendingalong a second direction crossing the first direction; and a scan driverin a peripheral area adjacent to the display area and providing a scansignal to the scan lines, wherein the peripheral area includes a cornerarea adjacent to a corner of the display area, and a notch area adjacentto the corner area and receding from a side of the peripheral area toform the notch, wherein a distance between the display area and an outeredge of the corner area is larger than a distance between the displayarea and an outer edge of the notch area.
 21. The display device ofclaim 20, wherein the display panel includes a bending portion extendingfrom the peripheral area, and a rear portion extending from the bendingportion and under a front portion including the display area.
 22. Thedisplay device of claim 21, wherein the peripheral area includes aconnection area connected to the bending portion, wherein the notch areabetween the corner area and the connection area.
 23. The display deviceof claim 20, wherein the display area includes a corner with a roundshape or a chamfered shape.
 24. The display device of claim 23, whereinthe scan driver is arranged along a curving line or a diagonal line,which corresponds to the corner of the display area, in the corner areaof the peripheral area.
 25. The display device of claim 20, wherein thedisplay panel further includes: a scan driving wiring passing throughthe notch area and electrically connected to the scan driver; a firstpower transfer wiring passing through the notch area and transferring afirst power voltage to the pixels; a plurality of power lines in thedisplay area and electrically connected to the pixels; and a secondpower transfer wiring in the peripheral area and electrically connectedto the power lines.
 26. The display device of claim 25, wherein thedisplay panel further includes a mesh power wiring in the display areaextending along the second direction and electrically connected to thepower lines, wherein the second power transfer wiring is not in thenotch area.
 27. The display device of claim 25, wherein the displaypanel further includes a connection wiring in the display area andconfigured to transfer a data signal to a data line adjacent to thecorner area.
 28. The display device of claim 25, wherein the first powertransfer wiring overlaps the scan driving wiring in the notch area. 29.The display device of claim 25, wherein at least one of the first powertransfer wiring or the second power transfer wiring has a width alongthe first direction in the corner area, which is larger than a widthalong the first direction in the notch area.